I'm trying my hardest to keep my sarcasm filters working here, but your post is still hitting me slightly off center so I hope you don't mind if I try to dissect it.
"What you'll find is that your contract clearly states "up to" whatever
your maximum speed is, and that Verizon actually guarantees nothing.
Which is as it should be, since while in this case it may be them
causing deliberate congestion, it's clearly impossible for them to
control how the entire Internet works"
I'm not sure claiming up to is "how it should be". If they can give me network averages over time periods with a mean and standard deviation I would have a much better idea of the actual performance. Up to just means you grabbed your peak throughput and are bragging about it in marketing terms, with no regard to statistics that are actually meaningful. true, you don't control the whole pipe but there are a lot more meaningful statistics than "peak" for everyone but the marketroids.
"So the right answer is to switch ISPs, if you can"...
most in the US can't in a meaningful way.
... "and sooner rather than later, before "Net Neutrality" goes into effect and you lose what few choices you have."
I'm going to take the charitable view here and assume you are saying that what the FCC us currently referring to as Net Neutrality really isn't.
"If you're unhappy with your choices, you should fight to get the FCC and
the state governments out of the ISP business and open it up to
competition, which is the only thing that will put a stop to this
I hope you are referring to real competition, and with oversight still existing. Otherwise, this just sounds like ultra libertarian or conservative "The invisible hand of the market" will save us crap. While I agree the current FCC establishment is far too cable company friendly, leaning on government agencies and representatives is still a viable option, and the idea that collusion between market powers and monopolies only can happen with government agencies supporting them is the straw man argument that will likely keep the monopolies in place longer.
You need checks and balances, and if they have been corrupted they need to be fixed or replaced, not eliminated.